Finding the Fourth Proportional to 1,223,657,351,837.20, 1,688,652,395,400.30 and 667,474,599,323.45
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Solution
The fourth proportional to 1,223,657,351,837.20, 1,688,652,395,400.30 and 667,474,599,323.45 is: 921,117,810,736.90
Step by Step Solution
- Step 1: Write the proportion equation
1,223,657,351,837.20 : 1,688,652,395,400.30 = 667,474,599,323.45 : x - Step 2: Convert to fraction form
1,223,657,351,837.20/1,688,652,395,400.30 = 667,474,599,323.45/x - Step 3: Cross multiply
1,223,657,351,837.20x = 1,688,652,395,400.30 × 667,474,599,323.45 - Step 4: Simplify right side
1,223,657,351,837.20x = 1,127,132,581,016,399,251,505,152 - Step 5: Solve for x
x = 1,127,132,581,016,399,251,505,152/1,223,657,351,837.20 - Step 6: Final answer
x = 921,117,810,736.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.